Urethral infection is an infectious disease caused by the infection of the urethra with pathogenic microorganisms such as Escherichia coli, Streptococcus, Staphylococcus aureus, Gonococcus, Mycoplasma, Chlamydia, etc. It is a common disease of the urinary system and is mainly caused by retrograde infection. The main clinical manifestations are frequent urination, urgent urination, painful urination, and pus flowing from the urethra. UTIs are classified into gonococcal and non-gonococcal urethritis depending on the causative agent of the urethral infection. Both gonococcal urethritis and non-gonococcal urethritis are diseases that are transmitted through sexual contact, also known as sexually transmitted diseases, with an incubation period of 1-3 weeks. Gonococcal urethritis is caused by gonococcal infection of the urethra, resulting in pus flowing from the urethral orifice, and the pus is milky or yellow, while most of the urethral discharge caused by non-gonococcal urethritis is a clear amount of sticky or yellowish liquid, accompanied by redness and stinging sensation in the urethra. If necessary, you need to do urethral secretion culture and drug sensitivity to clarify the diagnosis, choose the appropriate drugs for treatment, during the treatment period, you need to pay attention to drink more water, urinate regularly, eat a light diet, prohibit spicy and stimulating food, and prohibit sexual intercourse. As mentioned above, the main clinical manifestations are frequent urination, urgent urination, painful urination, pus flowing from the urethra, burning sensation in the urethra, itching in the urethra, redness and swelling in the urethra, and other symptoms.